Product Overview
The Bimetallic Vane Pump Sleeve Bearing is designed to support medium- and high-speed rotor shafts in vane pumps.
It can be used for original pump production and direct replacement during maintenance.
Material Structure
The bearing combines a steel backing with a tin bronze alloy inner wall.
The steel section provides rigid support, while the bronze surface offers low-friction performance for the rotating shaft.
High-Speed Operation
The product supports a maximum sliding speed of 12 m/s.
Its friction temperature rise remains low during high-speed operation, helping the bearing maintain dimensional stability.
Stable Wear Pattern
The tin bronze inner wall is designed to wear evenly during long operating cycles.
Consistent wear helps prevent excessive clearance and supports stable rotor alignment over time.
Pump Noise and Vibration
Accurate shaft support helps maintain rotor coaxiality.
This can reduce vibration and operating noise caused by unstable shaft movement inside the vane pump.
Dimensional Accuracy
The inner diameter tolerance is H6, and the bore surface roughness is Ra 0.4 μm or better.
These controlled dimensions allow the Bimetallic Vane Pump Sleeve Bearing to replace a matching original part without additional fitting.
Load and PV Performance
The dynamic load capacity is up to 55 N/mm².
The oil-lubricated PV limit is 10 N/mm²·m/s, supporting medium- and high-speed oil-lubricated applications.
Application Areas
The bearing is suitable for vane pump rotor shafts and transmission shafts.
Typical applications include machine tools, injection molding machines, and other equipment using medium- or high-speed vane pumps.
Custom Manufacturing
Production is available according to customer drawings.
The minimum order quantity is 100 pieces, and dimensions must be confirmed before sample development.
Sample and Delivery Time
Custom samples normally require 30 days. Urgent samples may be completed around five days earlier.
Standard delivery is 25–30 days. Repeat-order delivery may be shortened by approximately one week.
Manufacturing Management
The factory is located in Qingzhou Economic Development Zone. Equipment maintenance, operator procedures, and production environment management follow defined internal requirements.
The product carries a six-month warranty and is supplied for domestic and overseas orders.
Product Specifications
|
Parameter |
Specification |
|
Material Structure |
Steel backing + tin bronze alloy inner wall |
|
Dynamic Load Capacity |
≤55 N/mm² |
|
Inner Diameter Tolerance |
H6 |
|
Maximum Sliding Speed |
12 m/s |
|
Oil-Lubricated PV Limit |
10 N/mm²·m/s |
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